@RandomMrAdam is on the right track, I think. (And @gailcalled is giving you some good questions for your own insight. The ‘chief’ / ‘indian’ question is about whether you would prefer to be a manager or not, as in “Too many chiefs, not enough Indians.’)
If you don’t know what kind of work you want to do, the best way to find out is… to start working. I wouldn’t go back to school because of that—but your school should offer career counseling or even an alumni association that can help to guide you to the job that’s right for you, and maybe even alongside fellow alumni from the same school.
Along with @gailcalled‘s questions, you can ask your own (of yourself):
Do you prefer working with numbers or with people?
Machines or people?
People like yourself or ‘all kinds’ of people? (That is, ‘like’ you in terms of age, gender, race, economic circumstance, culture, etc.)
Do you like to analyze or empathize?
Do you have artistic, design or craft aptitudes that you’d like to build on?
Are you more interested in finding a job that you love (no matter what it pays—assuming you can scrape by), or would you prefer to work at a job that pays very well, even if you don’t necessarily care for it that much?
You have to ask and answer your own questions, but these might help you get started.